STIHL 090, 090AV Genuine Clutch Springs (2) # 0000 997 5616

A must have if your 090 saw has done a lot of work and if your springs are worn or bent in any way.
Likewise over time the springs will lose their tension making the clutch engage prematurely, which can
be dangerous. If in doubt for the sake of Safety... change them
 
Clutch springs on the 090 should always be changed together as a pair. If you struggle fitting them let me know and I can help...